forked from acouzens/open5gs
303 lines
10 KiB
C
303 lines
10 KiB
C
/*
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* Copyright (C) 2019,2020 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "sbi-path.h"
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#include "nnrf-handler.h"
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void udm_nnrf_handle_nf_register(
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ogs_sbi_nf_instance_t *nf_instance, ogs_sbi_message_t *message)
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{
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OpenAPI_nf_profile_t *NFProfile = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(message);
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ogs_assert(nf_instance);
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client = nf_instance->client;
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ogs_assert(client);
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NFProfile = message->NFProfile;
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if (!NFProfile) {
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ogs_error("No NFProfile");
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return;
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}
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/* TIME : Update heartbeat from NRF */
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nf_instance->time.heartbeat_interval = NFProfile->heart_beat_timer;
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}
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void udm_nnrf_handle_nf_status_subscribe(
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ogs_sbi_subscription_t *subscription, ogs_sbi_message_t *message)
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{
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OpenAPI_subscription_data_t *SubscriptionData = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(message);
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ogs_assert(subscription);
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client = subscription->client;
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ogs_assert(client);
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SubscriptionData = message->SubscriptionData;
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if (!SubscriptionData) {
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ogs_error("No SubscriptionData");
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return;
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}
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if (!SubscriptionData->subscription_id) {
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ogs_error("No SubscriptionId");
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return;
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}
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ogs_sbi_subscription_set_id(
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subscription, SubscriptionData->subscription_id);
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if (SubscriptionData->validity_time) {
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#define VALIDITY_MARGIN (5LL * OGS_USEC_PER_SEC) /* 5 seconds */
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#define VALIDITY_MINIMUM (3600LL * OGS_USEC_PER_SEC) /* 3600 seconds */
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ogs_time_t time, duration;
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if (ogs_sbi_time_from_string(
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&time, SubscriptionData->validity_time) == true) {
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duration = time - ogs_time_now() - VALIDITY_MARGIN;
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if (duration < VALIDITY_MINIMUM) {
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duration = VALIDITY_MINIMUM;
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ogs_warn("[%s] Forced to %lld seconds", subscription->id,
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(long long)ogs_time_sec(VALIDITY_MINIMUM));
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}
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subscription->t_validity = ogs_timer_add(udm_self()->timer_mgr,
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udm_timer_subscription_validity, subscription);
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ogs_assert(subscription->t_validity);
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ogs_timer_start(subscription->t_validity, duration);
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} else {
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ogs_error("Cannot parse validitiyTime [%s]",
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SubscriptionData->validity_time);
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}
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}
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}
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bool udm_nnrf_handle_nf_status_notify(
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ogs_sbi_session_t *session, ogs_sbi_message_t *message)
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{
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ogs_sbi_response_t *response = NULL;
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OpenAPI_notification_data_t *NotificationData = NULL;
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OpenAPI_nf_profile_t *NFProfile = NULL;
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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bool handled;
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ogs_assert(session);
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ogs_assert(message);
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NotificationData = message->NotificationData;
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if (!NotificationData) {
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ogs_error("No NotificationData");
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "No NotificationData", NULL);
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return false;
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}
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NFProfile = NotificationData->nf_profile;
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if (!NFProfile) {
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ogs_error("No NFProfile");
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "No NFProfile", NULL);
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return false;
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}
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if (!NFProfile->nf_instance_id) {
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ogs_error("No NFProfile.NFInstanceId");
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "No NFProfile", "NFInstanceId");
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return false;
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}
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if (!NFProfile->nf_instance_id) {
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ogs_error("No NFProfile.NFInstanceId");
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "No NFProfile", "NFInstanceId");
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return false;
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}
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if (NF_INSTANCE_IS_SELF(NFProfile->nf_instance_id)) {
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ogs_error("The notification is not allowed [%s]",
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NFProfile->nf_instance_id);
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_FORBIDDEN,
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message, "The notification is not allowed",
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NFProfile->nf_instance_id);
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return false;
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}
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if (NotificationData->event ==
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OpenAPI_notification_event_type_NF_REGISTERED) {
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nf_instance = ogs_sbi_nf_instance_find(NFProfile->nf_instance_id);
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if (!nf_instance) {
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nf_instance = ogs_sbi_nf_instance_add(NFProfile->nf_instance_id);
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ogs_assert(nf_instance);
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udm_nf_fsm_init(nf_instance);
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ogs_info("[%s] (NRF-notify) NF registered", nf_instance->id);
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} else {
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OGS_FSM_TRAN(&nf_instance->sm, udm_nf_state_registered);
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ogs_fsm_dispatch(&nf_instance->sm, NULL);
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ogs_warn("[%s] (NRF-notify) NF has already been added",
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NFProfile->nf_instance_id);
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}
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handled = ogs_sbi_nnrf_handle_nf_profile(
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nf_instance, NFProfile, session, message);
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if (!handled) {
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UDM_NF_INSTANCE_CLEAR("NRF-notify", nf_instance);
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return false;
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}
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ogs_info("[%s] (NRF-notify) NF Profile updated", nf_instance->id);
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handled = ogs_sbi_client_associate(nf_instance);
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if (!handled) {
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ogs_error("[%s] Cannot associate NF EndPoint", nf_instance->id);
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ogs_sbi_server_send_error(session,
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OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "Cannot find NF EndPoint", nf_instance->id);
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UDM_NF_INSTANCE_CLEAR("NRF-notify", nf_instance);
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return false;
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}
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} else if (NotificationData->event ==
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OpenAPI_notification_event_type_NF_DEREGISTERED) {
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nf_instance = ogs_sbi_nf_instance_find(NFProfile->nf_instance_id);
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if (nf_instance) {
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UDM_NF_INSTANCE_CLEAR("NRF-notify", nf_instance);
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} else {
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ogs_warn("[%s] (NRF-notify) Not found", NFProfile->nf_instance_id);
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ogs_sbi_server_send_error(session,
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OGS_SBI_HTTP_STATUS_NOT_FOUND,
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message, "Not found", message->h.resource.component[1]);
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return false;
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}
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} else {
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char *eventstr = OpenAPI_notification_event_type_ToString(
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NotificationData->event);
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ogs_error("Not supported event [%d:%s]",
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NotificationData->event, eventstr ? eventstr : "Unknown");
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ogs_sbi_server_send_error(session, OGS_SBI_HTTP_STATUS_BAD_REQUEST,
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message, "Not supported event",
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eventstr ? eventstr : "Unknown");
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return false;
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}
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response = ogs_sbi_build_response(message, OGS_SBI_HTTP_STATUS_NO_CONTENT);
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ogs_assert(response);
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ogs_sbi_server_send_response(session, response);
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return true;
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}
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void udm_nnrf_handle_nf_discover(
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ogs_sbi_object_t *sbi_object, ogs_sbi_message_t *message)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_sbi_session_t *session = NULL;
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OpenAPI_search_result_t *SearchResult = NULL;
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OpenAPI_lnode_t *node = NULL;
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bool handled;
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ogs_assert(sbi_object);
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session = sbi_object->session;
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ogs_assert(session);
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ogs_assert(message);
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SearchResult = message->SearchResult;
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if (!SearchResult) {
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ogs_error("No SearchResult");
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return;
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}
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OpenAPI_list_for_each(SearchResult->nf_instances, node) {
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OpenAPI_nf_profile_t *NFProfile = NULL;
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if (!node->data) continue;
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NFProfile = node->data;
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nf_instance = ogs_sbi_nf_instance_find(NFProfile->nf_instance_id);
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if (!nf_instance) {
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nf_instance = ogs_sbi_nf_instance_add(NFProfile->nf_instance_id);
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ogs_assert(nf_instance);
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udm_nf_fsm_init(nf_instance);
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ogs_info("[%s] (NF-discover) NF registered", nf_instance->id);
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} else {
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OGS_FSM_TRAN(&nf_instance->sm, udm_nf_state_registered);
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ogs_fsm_dispatch(&nf_instance->sm, NULL);
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ogs_warn("[%s] (NF-discover) NF has already been added",
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NFProfile->nf_instance_id);
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}
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if (NF_INSTANCE_IS_OTHERS(nf_instance->id)) {
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handled = ogs_sbi_nnrf_handle_nf_profile(
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nf_instance, NFProfile, NULL, NULL);
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if (!handled) {
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ogs_error("[%s] ogs_sbi_nnrf_handle_nf_profile() failed",
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nf_instance->id);
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UDM_NF_INSTANCE_CLEAR("NRF-discover", nf_instance);
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continue;
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}
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handled = ogs_sbi_client_associate(nf_instance);
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if (!handled) {
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ogs_error("[%s] Cannot assciate NF EndPoint", nf_instance->id);
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UDM_NF_INSTANCE_CLEAR("NRF-discover", nf_instance);
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continue;
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}
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if (!OGS_SBI_NF_INSTANCE_GET(
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sbi_object->nf_types, nf_instance->nf_type))
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ogs_sbi_nf_types_associate(sbi_object->nf_types,
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nf_instance->nf_type, sbi_object->nf_state_registered);
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/* TIME : Update validity from NRF */
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if (SearchResult->validity_period) {
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nf_instance->time.validity_duration =
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SearchResult->validity_period;
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ogs_assert(nf_instance->t_validity);
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ogs_timer_start(nf_instance->t_validity,
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ogs_time_from_sec(nf_instance->time.validity_duration));
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} else
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ogs_warn("[%s] NF Instance validity-time should not 0",
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nf_instance->id);
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ogs_info("[%s] (NF-discover) NF Profile updated", nf_instance->id);
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}
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}
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ogs_assert(sbi_object->nf_type);
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nf_instance = OGS_SBI_NF_INSTANCE_GET(
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sbi_object->nf_types, sbi_object->nf_type);
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if (!nf_instance) {
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ogs_error("(NF discover) No [%s]",
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OpenAPI_nf_type_ToString(sbi_object->nf_type));
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} else {
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ogs_sbi_send(nf_instance, sbi_object);
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}
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}
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